Valproic acid (VPA) is a chemical compound that has found clinical use as an anticonvulsant and mood-stabilizing drug, primarily in the treatment of epilepsy, bipolar disorder, and less commonly major depression.

Vanillin, (also known as methyl vanillin), is an organic compound with the molecular formula C8H8O3. Its functional groups include aldehyde, ether, and phenol. It is the primary component of the extract of the vanilla bean. It is also found in roasted coffee[2] and in the Chinese red pine. Synthetic vanillin is used as a flavoring agent in foods, beverages, and pharmaceuticals.

Venlafaxine (Effexor, Efexor) is an arylalkanolamine SNRI,[1] although some authors dispute the claim that it inhibits norepinephrine reuptake.[2] First introduced by Wyeth in 1993, it is licensed for the amelioration (cf. palliation) of MDD, as an anxiolytic, & comorbid indications.

Vinyl fluoride is an organic halide with the chemical formula C₂H₃F. It is a colorless gas with a faint etherlike odor. It is used as the monomeric precursor to the fluoropolymer polyvinylfluoride.